A few questions before I start my build

Hey guys,
So now I got it all wired up and I uploaded the @RacingMat code. The motors spin continuously but the pots don't do anything. What am I doing wrong?

I installed the arduino drivers and set the baud rate as per the instructions. Then I uploaded the code and the motors started spinning. That's all I could figure out.

@getti I know zilch about Ards but I imagine that the pots should be set to 2.5v which is the mid and stopped position. Use a multimeter on the center/slider position on the pot and set to the right voltage hope that helps. Good luck!!

Isn't the first thing that happens is the motor controller turns the motor until the degrees of rotation is meet for a total of 180°. 90° forward and back then it sets at 0° and awaits for input from SimTools? There are definitely other ways to do it and I just read someone explaining this, but it could be for another interface. Note that if POTs are readers then they can't read anything if they are just sitting on the desk? I'm about to start testing the same thing and have been reading a bit about it this morning.

Edit: Noorbeast posted the related bits below.

Can't quite see but I think you have the wiring from the pots into A1 and A2 on the arduino, They should be connected to A4 and A5. At least that is how they work on my rig using racingmats code. If I remember correctly there are two different wiring suggestions from Racingmat on different threads one saying A1 and A2 and the other A4 and A5
Also if it is wired correctly the two led's on the mm will turn off and on as you turn the pot, middle off, clockwise or anti-clockwise on.And it is vitally important to get the pots to rotate in the correct direction when attached to the motors otherwise the motors will spin non stop.
Hope that helps

The wiring diagram is pretty clear and it says pots on A0 and A1. Pretty sure the reason both lights are on is cause it's spinning continuously in one direction no matter if I turn the pot.

I can't see any Tolerance value in the code. Also I tried changing the rotation values but it doesn't seem to do anything. I have no idea what I'm doing when it comes to this code stuff. Greek to me...

I'm assuming this is it. I'm completely new to this type of code also.
{
int Tol=20; // no order to move will be sent to the motor if the target is close to the actual position

The code works (for testing reasons) without simtools.

You don't even need to connect the arduino to your computer with a usb cable...you just need to power it with its own psu(9volt 1000+maH preferably).

In this configuration the arduino tries to put both mottors in the middle position.

If everything is connected as required the motors start spinning until you set both potentiometers in their middle position.

Then the motors stop.

So if both your motors spin...then you are OK with the motor connections.

But if they don't stop or change direction when you turn the pots...then there is a mistake on the pots connection that you need to correct.

Did you try A4 and A5 analog inputs?
Should solve your issue.

SOLVED!!! Thanks for that. The wiring diagram should be updated for @RacingMat code to show analog A4 and A5.
So what's the next step to get the interface working with simtools?

Got everything working on the model, thanks for the help everyone. Still have to figure out what a "profile" is but it seems to work pretty good for now. Also planning to add traction loss to the model but I might start building the full size rig first.
Here's a video: let me know what you think..

I've now started the build on the full size rig. Here is the link for the thread:
https://www.xsimulator.net/community/threads/kartsim1-2dof-traction-loss-wipers-arduino-mm.8904/

Hi getti,

I'm George from Hungary.
I'm also just want to build a seat mover, as you did.
I have already the motors, and the PSU's. I have read your posts about the building,
I have understand almost everything about the mechanical part, but at the electronic
installation maybe I need some help.
So. I need the followings, right?:

UNO R3 ATmega328P CH340G USB Driver Board for Arduino DIY

also I need:

Dual VNH2SP30 Stepper Motor Driver Module 30A Monster Moto Shield Replace L298N

The UNO R3 unit connects to the PC and simtools by USB?

The Stepper Motor Driver connect to the UNO, and connects to the motors, right?
The power from the PSU's connects to the Motor driver, as in your pics?
The Motor Driver's output connect to the motors, but I can see some other connections to the motors
just at the end of the rig, maybe the pot. meters?
If I need pot. meters, what kind of them I need?

Can you send me a complete wiring of the final working unit?

Many thanks for help me.

George, Hungary.

Hi Getti,

Should you show me the final and working diagram for wiring or some link for that?

Thanx,
George